Clinical trials: Caffeine, completed
Pre Diabetes
Abscisic Acid Effects on Glucose Homeostasis and Insulin Sensitivity
The purpose of this study is to determine the effects of oral abscisic acid (ABA) on glucose metabolism in subjects with defined prediabetes.
- Trial name
- ABA (NCT04722354)
- Testing
- Hyperinsulemic euglycemic clamp, Muscle Biopsy, Oral abscisic acid (ABA)
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- AdventHealth Translational Research Institute
Sleep Disruption, Sleep Hygiene
Sleep Hygiene During Ramadan
Ramadan fasting often disrupts sleep patterns, which can affect alertness and physical performance in student-athletes. This study tested whether a brief sleep education program designed for Ramadan could help improve sleep…
- Conditions
- Sleep Disruption, Sleep Hygiene, Ramadan Fasting
- Trial name
- SHIR (NCT07639229)
- Testing
- Culturally Adapted Sleep Hygiene Education Program
- Where
- Tunisia
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- The Higher Institute of Sport and Physical Education of Sfax
Diabetes Mellitus, Hyperglycemia
DPBRN Blood Sugar Testing in Dental Patients
The principal goal of this study was to assess the feasibility of plasma glucose testing in private dental practice. A second aim was was to assess prevalence of plasma glucose abnormalities in dental patients seen by (DPBRN)…
- Trial name
- NCT01201460
- Where
- 7 sites in United States, Denmark
- Volunteers
- 498 people, healthy volunteers welcome
- Sponsor
- Dental Practice-Based Research Network
Cognitive Change, Sleep Deprivation
Sleep Deprivation Study
The purpose of this study is to evaluate the measures of brain function, both neurophysiological (event-related potentials (ERPs) and functional (cognitive assessments), in response to sleep deprivation.
- Conditions
- Cognitive Change, Sleep Deprivation, Caffeine
- Trial name
- NCT05560620
- Testing
- Sleep Deprivation, Caffeine, No Caffeine
- Where
- Canada
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- NeuroCatch Inc.
Blood Pressure, Blood Glucose, High
Health Effect of Energy Drink Consumption
Energy drinks consumption has varied effects on the hemodynamic, blood glucose levels, brain functions and memory. The use of energy drinks is pervasive and especially young adults consume it often as binge drinking.
- Conditions
- Blood Pressure, Blood Glucose, High, Cognitive Change
- Trial name
- NCT04961086
- Testing
- energy drink
- Where
- Pakistan
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Dow University of Health Sciences
Energy Drinks
Effects of Energy Drinks
This study is designed to test the efficacy of energy drinks. This is a double-blinded, crossover, randomized clinical trial, measuring the effect of the test drinks compared with placebo drink in 200 participants aged 18-70…
- Trial name
- NCT02727920
- Testing
- Energy drink
- Where
- United States
- Volunteers
- 228 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
Brown Adipose Tissue (BAT) Physiology, Cold Exposure
Effect of Caffeine on Cold-stimulated Brown Adipose Tissue Activity
The purpose of the study is to asses brown adipose tissue activity after a cold mild stimulus, preceded by 200mg caffeine or placebo administration.
- Trial name
- ACROBAT (NCT06978777)
- Testing
- Caffeine (200 mg)
- Where
- Switzerland
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
Perimenopause
Radicle Revive™ CSP: A Trial Evaluating Plant-Based Health and Wellness Products on Perimenopausal Women's Self-Reported Health Issues and Outcomes
A randomized, double-blind, placebo-controlled, trial evaluating plant-based health and wellness products on perimenopausal women's self-reported health issues and outcomes
- Trial name
- NCT07148011
- Testing
- Revive Product Form - Active
- Where
- United States
- Volunteers
- 900 people, healthy volunteers welcome
- Sponsor
- Radicle Science
Coffee, Pregnancy
Coffee Consumption and Pregnancy
Coffee, tea, and cocoa contain caffeine, a plant alkaloid. They are frequently consumed during pregnancy. We examined the effect of coffee consumption on fetal renal artery blood flow and amniotic fluid index (AFI) in the third…
- Trial name
- NCT03798275
- Testing
- coffee
- Where
- Turkey (Türkiye)
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Kayseri Education and Research Hospital
Caffeine, Cellulitis
The Effects of Iontophoresis in Women With Gynoid Hidrolipodystrophy.
Introduction: Gynoid hydrolipodystrophy (HLDG) or cellulitis is a subcutaneous tissue disorder, with several strategies for its treatment, such as caffeine and iontophoresis.
- Trial name
- NCT03556917
- Testing
- iontophoresis + caffeine
- Where
- Brazil
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Universidade Norte do Paraná
Polymorphism, Sleep Disorder
Polymorphisms, Caffeine and Sleep Disorders
Screening of a population of volunteer workers recruited on the occasion of their occupational health visit, within the Ministry of Defense and civil enterprises.
- Conditions
- Polymorphism, Sleep Disorder, Coffee-Workers' Disease
- Trial name
- SOCAF (NCT03855774)
- Testing
- Polymorphisms
- Where
- France
- Volunteers
- 1,100 people, healthy volunteers welcome
- Sponsor
- Institut de Recherche Biomedicale des Armees
Healthy
Caffeine Disposition After Inhalation
The purpose of this study is to determine how fast caffeine gets into your body with a product called Aeroshot™. Aeroshot™ is a lipstick sized device that you slide open and then put your mouth over the opening and inhale.
- Trial name
- NCT02184104
- Testing
- Caffeine
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Tennessee
Energy Metabolism, Athletic Performance
Caffeine Increases Maximal Fat Oxidation During Exercise in Endurance-trained Men: is There a Diurnal Variation
Maximal fat oxidation during exercise (MFO) and the intensity of exercise that elicits MFO (Fatmax) has been recognized as potential determinants of endurance performance.
- Trial name
- NCT04320446
- Testing
- Test in the morning, Test in the afternoon
- Where
- Spain
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Universidad de Granada
Dietary Supplements, Caffeine
Effect of Acute Caffeine and Beetroot Juice Intake on Strength, Power, and Muscular Endurance
Introduction: Several studies have evaluated and confirmed the ergogenic effect of acute caffeine and beetroot juice intake on sports performance.
- Conditions
- Dietary Supplements, Caffeine, Nitrates, Sports Performance
- Trial name
- CAF+BJ (NCT06596395)
- Testing
- Acute caffeine and beetroot juice, Acute caffeine, Acute beetroot juice
- Where
- Spain
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Alcala
Migraine Disorders
Caffeine/Propranolol Intervention for Acute Migraine
This is a research study to assess the safety of caffeine/propranolol at different dose levels. We want to find out what effects, good and/or bad, it has on patients and their migraines.
- Trial name
- NCT01080677
- Testing
- caffeine/propranolol combination tablet
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Stanford University
Carbohydrate Intolerance
Carbohydrate Intolerance Questionnaire Study
The purpose of this study is to evaluate the validity of using a carbohydrate intolerance questionnaire (CIQ) and/or other health markers as a means of predicting response to insulin sensitivity as determined by an oral glucose…
- Trial name
- Curves1 (NCT03138902)
- Testing
- TRUTOL Glucose Tolerance Beverage
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- Texas A&M University
Performance Enhancement
CAF & Firefighters Performance
The aim of the study being to investigate chewing caffeine-containing gum could effectively improve firefighters' balance under conditions of brain fatigue.
- Trial name
- CAF & FFT (NCT07570030)
- Testing
- Caffeine (300 mg)
- Where
- Taiwan
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Chih-Hui Chiu
Apnea, Sleep
Effects of CPAP on Cognitive Function, Neurocognitive Architecture and Function in Patients With OSA: The SMOSAT Trial
Multiple clinical studies have indicated that obstructive sleep apnea (OSA), the most common chronic sleep disorder, may affect neurocognitive function, and that treatment for continuous positive airway pressure (CPAP) has some…
- Trial name
- NCT02886156
- Testing
- CPAP, BSC
- Where
- China
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital
Sleep, Caffeine
Protocol PERCAF 2018
In this multicentric controlled study, we aims to evaluate effect of caffeine on mental performances during a sleep deprivation protocol. Genetic polymorphisms are considered as a covariable.
- Conditions
- Sleep, Caffeine, Polymorphism
- Trial name
- PERCAF (NCT03859882)
- Testing
- Sleep deprivation
- Where
- 2 sites in France
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Institut de Recherche Biomedicale des Armees
Healthy Volunteers, Drug Drug Interaction
Flucloxacillin as an Inducer of CYP-enzymes
Worldwide there is an increase in antibiotic resistance which may have potential fatal long-term consequences. This is due to extensive use and sometimes misuse of antibiotics in the treatment of harmless infections.
- Trial name
- NCT04840641
- Testing
- Flucloxacillin
- Where
- Denmark
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Southern Denmark